The text input field in the quick chat plasmoid shout auto-expand in order to be able to write longer messages more comfortably (it may start with a single line because the plamsoid is supposed to be small overall) Reproducible: Always
We can do that rather easily. It will still be limited, but it can't hurt to be able to read all we are saying.
Dear user, unfortunately Telepathy is no longer maintained. Please migrate to another solution, e.g. for Jabber a possibility is Kaidan, for Matrix a candidate is NeoChat.